Boston Acoustics SL80 / SL 80 / SL 80 2 Way 5 x 7 Component Speakers Type-S1; 1" Kortec Dome Tweeter With Diffuser AMD RMS Output: 60 Watts Frequency Response: 45 Hz To 20 KHz (+/-) 3dB Sensitivity With 2.83v Input @ 1m = 90dB SPL